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Svelte with Test-Driven Development

You're reading from   Svelte with Test-Driven Development Advance your skills and write effective automated tests with Vitest, Playwright, and Cucumber.js

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Product type Paperback
Published in Jun 2023
Publisher Packt
ISBN-13 9781837638338
Length 250 pages
Edition 1st Edition
Languages
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Author (1):
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Daniel Irvine Daniel Irvine
Author Profile Icon Daniel Irvine
Daniel Irvine
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Table of Contents (22) Chapters Close

Preface 1. Part 1: Learning the TDD Cycle
2. Chapter 1: Setting up for Testing FREE CHAPTER 3. Chapter 2: Introducing the Red-Green-Refactor Workflow 4. Chapter 3: Loading Data into a Route 5. Chapter 4: Saving Form Data 6. Chapter 5: Validating Form Data 7. Chapter 6: Editing Form Data 8. Part 2: Refactoring Tests and Application Code
9. Chapter 7: Tidying up Test Suites 10. Chapter 8: Creating Matchers to Simplify Tests 11. Chapter 9: Extracting Logic Out of the Framework 12. Chapter 10: Test-Driving API Endpoints 13. Chapter 11: Replacing Behavior with a Side-By-Side Implementation 14. Chapter 12: Using Component Mocks to Clarify Tests 15. Chapter 13: Adding Cucumber Tests 16. Part 3: Testing SvelteKit Features
17. Chapter 14: Testing Authentication 18. Chapter 15: Test-Driving Svelte Stores 19. Chapter 16: Test-Driving Service Workers 20. Index 21. Other Books You May Enjoy

Testing authentication with Playwright

This section details the groundwork required for effective testing with your Playwright tests. First, we look at how to provide hard-coded authentication credentials for your end-to-end tests. Then we use this to verify that users can log in and log out of the application. Finally, we’ll update the existing tests so that they ensure the user is logged in before attempting to test the application functionality.

What about Cucumber?

If you’re using Cucumber tests with Playwright, then the same techniques presented here will also work for you.

Creating an auth profile for dev and test modes

It’s fairly typical to use OAuth authentication strategies that delegate authentication responsibilities to a third-party provider, such as Google or GitHub. However, when it comes to writing end-to-end tests, it’s impractical to maintain user accounts with these third parties just for the purposes of testing. For one thing...

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